SE 20 Rd over Silver Creek
Harper County, Kansas · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SE 20 Rd over Silver Creek in Harper County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1930, making it 95 years old at the 2025 inventory.
- It carries about 10 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 32 of the 373 inventoried bridges in Harper County rated poor (8.6%); 32 (8.6%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (37.12408, -97.93089)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 43 ft |
| Location | 3.3N 3.1W of Bluff City |
| NBI structure number | 000390753906960 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Harper County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| K2 Hwy over Spring Creek Drainage | 1959 | 3,406 | Good |
| K-2 Hwy over East Sand Creek Drainage | 1992 | 2,657 | Good |
| K2 Hwy over East Sand Creek Drainage | 1937 | 2,616 | Good |
| K2 Hwy over East Spring Creek | 1937 | 2,616 | Good |
| K2 Hwy over Chikaskia River | 1990 | 2,616 | Good |
| K-2 Hwy over BNSF Railroad | 1992 | 2,544 | Good |
All bridges nearby: Harper County, KS bridge conditions · every bridge in Harper County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.